Arrests made in murder of mom Krista Dittmeyer

Family friend Kathy Pratt said the incident is uncharacteristic of Dittmeyer, who she described as a caring, responsible mother. "Knowing Krista is that she would never, ever, ever leave that baby in that car by herself, never. Krista is such a devoted mother," Pratt told WBZ. "Whatever happened, it would not be voluntary on her part." Her mom said that Dittmeyer frequently visits her family and friends in Conway. Anyone with information is asked to call the Conway police at 603-356-5715.

20-year-old Krista Dittmeyer of Bridgton, Maine was found dead in a snow making pond near the Cranmore Mountain ski area in Conway April 27.

She was last seen alive on April 22. Her 14-month-old daughter was found unharmed the next day in a car in the ski area parking lot.

The New Hampshire Attorney General's Office announced the arrests Wednesday.

Anthony Papile, a 28-year-old of Ossipee, N.H., has been charged with second-degree murder. Trevor Ferguson, a 23-year-old of Tamworth, N.H., and 28-year-old Michael Petelis of Ossipee have each been charged with one count of conspiracy to commit robbery.

Dittmeyer's family told CBS affiliate WBZ that they were not familiar with the three men.

According to court documents, the men plotted to steal money and drugs from Dittmeyer. When she went to Petelis' home in Ossippe, investigators say Papile hit her in the head three times with a rubber club as she walked up the stairs to the apartment.

Then, he and Petelis bound Dittmeyer in duct tape and put her body in the trunk of her car, drove to the pond and dumped it there, according to the documents.

Investigators say Papile then gave Dittmeyer's drugs and money to Ferguson.

Petelis was described by prosecutor as someone who had a relationship with Dittmeyer - a "friend" who called himself Dittmeyer's "protector" while her boyfriend is in prison.

Papile is being held without bail. Petelis and Ferguson were each ordered held on $250,000 cash bail.